Edited the IAM Solution Arch intro

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IAM Architecture/Introduction.md

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 IAM Solution Architecture 
 ==========================
 
-When approaching and IAM (identity and access management) project it is
-important to consider the work as creating change within the
+When approaching an IAM (identity and access management) project it is
+important to consider the work as a process of creating change within the
 organization. In some circumstances the change will be minimal, with
 limited impact on resources. In other cases the change will be
 significant, impacting both infrastructure and personnel across the
 organization. It is highly recommended that a solution architecture for
-IAM projects be developed.
+IAM projects be developed. [HF: Why is a solution architecture important? Is it something that should be developed at the start of the process, or can it be done later? Perhaps: A solution architecture will act as the framework that ensures all components of the IAM project now and in the future are developed in an interoperable manner.]
 
-Identity management within an enterprise touches virtually all systems
-in use within the organization. Systems, in this context, comprise
+Identity management within an organization touches virtually all systems that organization uses. Systems, in this context, comprise
 computer systems that staff use in the performance of their job
 responsibilities and physical systems such as a requirement to show a
 driver license to gain access to a restricted area.
 
 It is the task of an identity professional to ensure that, wherever and
 whenever identity information is used within an enterprise, the
 information is collected and used in an properly designed environment
-that ensures efficiency, protects privacy and safeguards integrity.
+that ensures efficiency, protects privacy, and safeguards integrity.
 Applying an architectural approach will significantly raise the
 likelihood that an IAM project will be completed consistently and
 comprehensively with controlled impact on stakeholders.